Crews are at the scene of the blaze.
Emergency services are in Kwinana responding to calls of a chimney fire at the BP refinery.
Police are on scene managing traffic in the area.
Twelve career fire fighters and four volunteer fire fighters have contained the blaze, which started in the chimney of a decommissioned plant.
A Department of Fire and Emergency Services spokeswoman said there was no smoke in the area and no cause for concerns for nearby residents.
BHP Kwinana Nickel Refinery evacuated after a fire broke out on site. #perthnews pic.twitter.com/jhjR3sIhOy
— Texas Reeks (@TexReeks) July 20, 2018
Female passenger dies after horror Kwinana Freeway crash
Havana Brown and Thelma Plum to headline 2026 Crab Fest
Hazmat warning issued after rubbish truck catches fire in Kwinana Beach
WA Police ramp up patrols near schools as students return for Term 1
Fire engulfs car then spreads to bushland in Oakford
Community bands together to provide essential school supplies to local children
Detectives continue to hunt man who dragged woman by hair into bushes in Halls Head
Woman airlifted to hospital following South Yunderup crash
Shire of Murray celebrates outstanding citizens